From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B9236403B19 for ; Thu, 9 Jul 2026 09:59:15 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1783591156; cv=none; b=cn8osKwenxxXoLD5IU9rNZFMPG3MvpqQMBLzJ9DXwhJCJe+RUFLUSpSF/zi/VoyTwqGmBsiTDzZAxn7ZzEtV3lDnK3qr8Nzfr38iKQI2HgJGVs7686s7iqTwxKSpR3YgtUbO2WPaTcWern3ZRgfinlkMemXVYlQOQG9hrKcwNNI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1783591156; c=relaxed/simple; bh=k4hIiYRu9c8P4AI3Hsn+QS2iRcovxd055XywggxxdUM=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=RUZMNOwFPpvKVTLXVBFDGkFlMzStduR57NvaFQmP4YJCA39STX3HbahmLOMQfggY39NrWdxqjx8URwPrMuY3O7vbVI9JpTdMRLZwPUdHXCkRGTpslBO6fgCTJ5rK4ZUJVebuHb1JNamZllNnEtcMWt0jCehyTS0El885BBODR8w= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=dExGaf5Q; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="dExGaf5Q" Received: by smtp.kernel.org (Postfix) with ESMTPSA id E1BA81F000E9; Thu, 9 Jul 2026 09:59:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1783591155; bh=DMFPUfubpTUqqjgZWLJP4z/dS5j2QFCMuHdsl8oXIgE=; h=Date:Subject:To:Cc:References:From:In-Reply-To; b=dExGaf5Q8RdDWbn69Ukl/DgYVpNelCUOqtGeHH/lNMOOd9ucomy6B+dwsxJPGkiLc rleITgoVMnHxhjsr94C6gUQLvYb0SySD+Pgii6Ca1uo3W0qCVZFulhUfhUl+E2dQF+ QPT4a0egAx01r4y84WjWWjv9zqoHCIEB3nDxzvMaNJA1ZOjte7yk2dOqa3VMKbEpHL 4NwQbyY/SYnBZO+Cvt82MWkYcxSNEnLPJlx5OGYD9JY44BS/YgEKY1739X2LwUoQnh Tk+EOjR0EZUU8O608frDUhAPWwF4EBMtlvgJDQqrDWLCuPVkNBax7ktBuo7UN9+49f 0YOR8b1i9TskQ== Message-ID: <48ab1aa2-4743-4671-8600-2e51cbb48dfe@kernel.org> Date: Thu, 9 Jul 2026 11:59:11 +0200 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2 2/2] ksm: Use precise linear_page_index instead of the whole address space To: xu.xin16@zte.com.cn, akpm@linux-foundation.org Cc: chengming.zhou@linux.dev, linux-mm@kvack.org, linux-kernel@vger.kernel.org References: <20260709173312403qgj1Af6pRkFMDSsmc19sM@zte.com.cn> From: "David Hildenbrand (Arm)" Content-Language: en-US Autocrypt: addr=david@kernel.org; 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charset=UTF-8 Content-Transfer-Encoding: 7bit On 7/9/26 11:33, xu.xin16@zte.com.cn wrote: > From: xu xin > > Since we now have linear_page_index available that we can use here, > allowing for optimizing the RMAP walk, we can also use it to locate > more precisely all related-processes when error hits the KSM page, > which will decrease a lot of invalid iterations. > > Signed-off-by: xu xin > --- Acked-by: David Hildenbrand (Arm) -- Cheers, David